Hi All! ![hi hi]()
Car Infos
Year: 2002
Model: Zafira
Engine: Z18XE
I got a brand NEW, Fresh&Original ECU. (It looks a bit different than the old one, I think this is the latest appearance)
I put the ECU to the car and I programmed successfully.![yes yes]()
When I'm started the car I was surprised.![tmi tmi]()
On idle the RPM VERY unstable and sometime stall. I checked the DTC and I got a P0170 fault, lean mixture.
I checked ALL sensors (with Oscilloscope) and works well. I checked all, As for the need to get engine start. Mechanically everything is good and it works...
I put back the old ECU, and again I was surprised... Works well.
(But We know The Old ECU not work when the car reach operating temperature, but works well with cold engine)
Anyone has any idea what is this? It is impossible that the new ECU bad. Brand new...![thinking thinking]()
![thinking thinking]()
![thinking thinking]()
Thank you very much all help&advice in advance!

Car Infos
Year: 2002
Model: Zafira
Engine: Z18XE
There was a fault in the car. The car worked well until operating temperature. When reached the operating temperature then the car stopped and there was no communication with the ECU... When the car cooled down, It was communication with the ECU and the car good started. It was an ECU fault... I tried repair but impossible.
I got a brand NEW, Fresh&Original ECU. (It looks a bit different than the old one, I think this is the latest appearance)
I put the ECU to the car and I programmed successfully.

When I'm started the car I was surprised.

On idle the RPM VERY unstable and sometime stall. I checked the DTC and I got a P0170 fault, lean mixture.
I checked ALL sensors (with Oscilloscope) and works well. I checked all, As for the need to get engine start. Mechanically everything is good and it works...
I put back the old ECU, and again I was surprised... Works well.


Anyone has any idea what is this? It is impossible that the new ECU bad. Brand new...



Thank you very much all help&advice in advance!



